Recommendations for DNSSEC Resolvers Operators
draft-ietf-dnsop-dnssec-validator-requirements-00
dnsop D. Migault
Internet-Draft Ericsson
Intended status: Informational E. Lewis
Expires: November 22, 2020 ICANN
D. York
ISOC
May 21, 2020
Recommendations for DNSSEC Resolvers Operators
draft-ietf-dnsop-dnssec-validator-requirements-00
Abstract
The DNS Security Extensions define a process for validating received
data and assert them authentic and complete as opposed to forged.
This document is focused clarifying the scope and responsibilities of
DNSSEC Resolver Operators (DRO) as well as operational
recommendations that DNSSEC validators operators SHOULD put in place
in order to implement sufficient Trust that makes DNSSEC validation
output accurate. The recommendations described in this document
include, provisioning mechanisms as well as monitoring and management
mechanisms.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 22, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Migault, et al. Expires November 22, 2020 [Page 1]
Internet-Draft DRO Recommendations May 2020
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Table of Contents
1. Requirements Notation . . . . . . . . . . . . . . . . . . . . 2
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. DNSSEC Validator Description . . . . . . . . . . . . . . . . 5
5. Recommendations Categories . . . . . . . . . . . . . . . . . 6
6. Time deviation and absence of Real Time Clock Recommendations 7
7. Trust Anchor Related Recommendations . . . . . . . . . . . . 8
7.1. Trust Anchor Configuration . . . . . . . . . . . . . . . 9
7.1.1. Definition of the Trust model . . . . . . . . . . . . 10
7.1.2. Trust Model Bootstrapping . . . . . . . . . . . . . . 11
7.1.3. Configuration Generation . . . . . . . . . . . . . . 12
7.1.4. DNSSEC Resolver Instantiation . . . . . . . . . . . . 12
7.2. Trust Anchor Update . . . . . . . . . . . . . . . . . . . 12
7.2.1. Automated Updates to DNSSEC Trust Anchors . . . . . . 13
7.2.2. Automated Trust Anchor Check . . . . . . . . . . . . 13
8. Negative Trust Anchors Related Recommendations . . . . . . . 14
9. ZSK / KSK (non TA) Related Recommendations . . . . . . . . . 16
10. DNSKEY Related Recommendations . . . . . . . . . . . . . . . 17
10.1. Automated Reporting . . . . . . . . . . . . . . . . . . 17
10.2. Interactions with the cached RRsets . . . . . . . . . . 18
11. Cryptography Deprecation Recommendations . . . . . . . . . . 18
12. Invalid Reporting Recommendations . . . . . . . . . . . . . . 19
13. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
14. Security Considerations . . . . . . . . . . . . . . . . . . . 19
15. Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . 20
16. References . . . . . . . . . . . . . . . . . . . . . . . . . 20
16.1. Normative References . . . . . . . . . . . . . . . . . . 20
16.2. Informative References . . . . . . . . . . . . . . . . . 22
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 22
1. Requirements Notation
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
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